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Browsing by Author "Vogel, JC"

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  • Vogel, JC (South African Journal of Science, 2002-03)
    Cosmic ray production of the radioactive carbon isotope C-14, which is the basis for the radiocarbon dating method, has not remained constant over time. The result is that radiocarbon dates show significant deviations from ...
  • Vogel, JC; Visser, E; Fuls, A (University of Arizona, 2001)
    Ostrich eggshell from archaeological sites remains largely free of more recent carbon contamination and as such is suitable material for radiocarbon dating. The carbonate fraction of the shell does, however, display an ...